CN105144772A - Methods for mitigating interference in a communications apparatus and communications apparatus utilizing the same - Google Patents
Methods for mitigating interference in a communications apparatus and communications apparatus utilizing the same Download PDFInfo
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- CN105144772A CN105144772A CN201480023338.7A CN201480023338A CN105144772A CN 105144772 A CN105144772 A CN 105144772A CN 201480023338 A CN201480023338 A CN 201480023338A CN 105144772 A CN105144772 A CN 105144772A
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- transceiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
Abstract
A communications apparatus includes at least two cellular system radio transceivers capable of simultaneously performing transmitting/receiving radio activities in two cellular networks and a control entity. The control entity is coupled to the cellular system radio transceivers,collects radio activity information of the cellular system radio transceivers, determines whether interference will occur or is occurring and which cellular system radio transceiver is an aggressor transceiver and which cellular system radio transceiver is a victim transceiver when the interference occurs according to the radio activity information,and further determines control information according to the radio activity information for controlling the aggressor transceiver or the victim transceiver to mitigate the interference. The aggressor transceiver is the cellular system radio transceiver having the transmitting radio activity that will interfere or interferes with the receiving radio activity of the victim transceiver.
Description
the cross reference of related application
The right of the application requires the priority of following application: the application number that on April 23rd, 2013 submits is 61/814,961, and title is the interim case of the U.S. of " Methodandapparatustoreduceoravoiddualtalkinterference ".The full content with reference to these application cases is merged at this.
Technical field
The present invention has the method about alleviating the interference occurred in communicator.
Background technology
" wireless " one word be commonly referred to as the electronics or electric operation that do not use " signal wiring " to complete." radio communication " is the information transmission of the certain distance not using electronic conductor or circuit.Involved distance can short (for television-directed several meters) also can very (for the thousands of of radio communication or even 1,000,000 kms).The examples of wireless communication known most is mobile phone.Mobile phone uses radio wave to call to the other side from multiple position, the world with activation operator.As long as there is mobile phone website (cellulartelephonesite) accommodation can transmit the device with Received signal strength, just can use mobile phone anywhere, wherein, these signals are processed to transmit voice-and-data to mobile phone or the voice-and-data that transmits from mobile phone.
There is at present the good and well-defined communication wireless access techniques (RadioAccessTechnology, RAT) of various development.Such as, Global Systems for Mobile communications (GlobalSystemforMobilecommunication, GSM) be definition clear-cut and widely applicable communication system, it uses time division multiple access (TimeDivisionMultipleAccess, TDMA), wherein, TDMA is the multiplexing access mechanism for digital radio, for sending voice, data and the signaling data (telephone number such as dialed) between mobile phone and cell site.CDMA2000 is the 2.5/3G technical standard of mixed mobile communication, its employing code division multiple access (CodeDivisionMultipleAccess, CDMA) technology.USIM (UniversalMobileTelecommunicationsSystem, UMTS) is 3G mobile communication system, and it provides the multimedia service more advanced than gsm system.Wireless Fidelity (WirelessFidelity, Wi-Fi) is the technology of 802.11 engineering specification definition, and it can be used for home network, mobile phone and video-game to provide high frequency wireless local area network.Long Term Evolution (LongTermEvolution, LTE) and be 4G mobile communication system from the improvement LTE (LTE-A) that LTE develops, it provides than 2G and 3G system transfer of data more at a high speed.
Summary of the invention
The invention provides communicator and alleviate the method for the interference occurred in communicator.At least two mobile system radio transceivers and a controlled entity is comprised according to the communicator of the present invention's example embodiment.Wherein, these at least two mobile system radio transceivers are for performing the transmission/reception radio activity in two mobile networks (cellularnetwork) simultaneously.This controlled entity is coupled to this at least two mobile system radio transceivers, for collect mobile system radio transceiver radio activity information, according to this radio activity information determine whether interference by generations or occurring and when interference occur time which mobile system radio transceiver be disturb transceiver (aggressortransceiver) and which mobile system radio transceiver for being disturbed transceiver (victimtransceiver).This controlled entity more disturbs transceiver according to this radio activity information determination control information for controlling and is disturbed transceiver to alleviate interference.Interference transceiver is the mobile system radio transceiver with transmission radio activity, and wherein, this transmission radio activity is by interference or disturbing the reception radio activity being disturbed transceiver.
According to the method for alleviating the interference occurred in communicator of the present invention's example embodiment, wherein this communicator comprises at least two mobile system radio transceivers, for performing the transmission/reception radio activity in two mobile networks simultaneously.The method comprises: collect the radio activity information of mobile system radio transceiver, determine whether according to this radio activity information interference by generations or occurring and when interference occurs which mobile system radio transceiver be disturb transceiver and which mobile system radio transceiver for being disturbed transceiver; According to this radio activity information determination control information for controlling interference transceiver and being disturbed transceiver to alleviate interference.Wherein, interference transceiver is the mobile system radio transceiver with transmission radio activity, and wherein, this transmission radio activity is by interference or disturbing the reception radio activity being disturbed transceiver.
With reference to accompanying drawing, follow-up embodiment gives specific descriptions.
Accompanying drawing explanation
The present invention can be understood more all sidedly by the specific descriptions subsequently and example of reading reference accompanying drawing, wherein:
Fig. 1 is the module diagram of communicator according to an embodiment of the invention;
Fig. 2 is the simplification module diagram of the communicator in accordance with another embodiment of the present invention with central control entity;
Fig. 3 is the frequency diagram according to the interference of one embodiment of the invention display example;
Fig. 4 is the method flow diagram alleviating the interference occurred in communicator according to an embodiment of the invention, wherein, this communicator comprises at least two mobile system radio transceivers, and this mobile system radio transceiver is used for transmission (TX)/reception (RX) radio activity simultaneously performed in two mobile networks;
Fig. 5 determines whether according to one embodiment of the invention the method flow diagram that interference can occur;
Fig. 6 is the method flow diagram determining whether that interference can occur according to a further embodiment of the invention;
Fig. 7 is for determining the method flow diagram of the priority disturbing and be disturbed the communication service that transceiver provides according to an embodiment of the invention;
Fig. 8 is the method flow diagram determining the control information disturbing transceiver according to an embodiment of the invention; And
Fig. 9 is the method flow diagram determining the control information disturbing or be disturbed transceiver according to an embodiment of the invention.
Embodiment
Below be described as preferred embodiment of the invention process.Following examples are only used for exemplifying the technical characteristic of explaining the present invention, are not used for limiting category of the present invention.Protection scope of the present invention is when being as the criterion of defining depending on accompanying claim.
Fig. 1 is the module diagram of communicator according to an embodiment of the invention.Communicator 100 can comprise at least two mobile system radio transceivers, TX and/or RX that these at least two mobile system radio transceivers are used for performing in two mobile networks is simultaneously movable.As shown in Figure 1, communicator 100 can comprise LTE/LTE-A transceiver 110 and 120, WCDMA/TD-SCDMA transceiver 130 and GSM/CDMA transceiver 140.Note that the RAT (such as, LTE, LTE-A, WCDMA, TD-SCDMA, GSM and CDMA) of the mobile system radio transceiver shown in Fig. 1 is only one in multiple embodiment, the present invention is not limited to this.In addition, can one or more mobile system radio transceiver shown in Fig. 1 be regarded as virtual radio transceiver, due to according to different system requirements, mobile system radio transceiver can share with another mobile system radio transceiver one or more element that RF signal processing module and fundamental frequency signal processing module comprise.Such as, LTE/LTE-A transceiver 120 and WCDMA/WCDMA transceiver 130 can share the most of elements in RF signal processing module and fundamental frequency signal processing module, and still can operate alone according to different Digital Signal Processing (DigitalSignalProcessing, DSP) algorithms.
Each mobile system radio transceiver can comprise RF signal processing module (such as, RF signal processing module 111,121,131 or 141), fundamental frequency signal processing module (such as, fundamental frequency signal processing module 112,122,132 or 142) and controlled entity (such as, controlled entity 113,123,133 or 143).RF signal processing module (such as, RF signal processing module 111,121,131 or 141) receive RF signal by antenna and also process the RF signal that receives so that the RF signal of reception is converted to fundamental frequency signal, for the process of fundamental frequency signal processing module, or RF signal processing module can receive the fundamental frequency signal from fundamental frequency signal processing module and received fundamental frequency signal is converted to RF signal for transferring to equivalent communication device.Equivalent communication device can be (such as but not limited to) base station (BaseStation, BS) 30, Node B 20, other similar devices in evolved node B (eNB) 30 or mobile network.RF signal processing module can comprise multiple hardware element and firmware/software module to perform radio frequency conversion and RF signal transacting.Such as, RF signal processing module can comprise power amplifier, frequency mixer etc.
Fundamental frequency signal processing module (such as, fundamental frequency signal processing module 112,122,132 or 142) can process (such as, decoding and demodulation) fundamental frequency signal corresponding with the RF signal of RF signal processing module process be with the information obtaining equivalent communication device and transmit or data, such as, the system information of the equivalent communication device carrying in RF signal, and fundamental frequency signal processing module can process (such as, coding and the modulation) upstream data to equivalent communication device to be transmitted (such as fundamental frequency signal) and provide fundamental frequency signal to RF signal processing module.Wherein, fundamental frequency signal process can comprise Analog-digital Converter (ADC)/digital-to-analogue conversion (DAC), gain modulation, modulating/demodulating, coding/decoding etc.
Controlled entity (such as, controlled entity 113,123,133 or 143) can control the operation of corresponding fundamental frequency signal processing module and RF signal processing module to control the integrated operation of corresponding mobile system radio transceiver.
Communicator 100 more can comprise processor 150, memory 160 and overall clock 170.Processor 150 is connected to mobile system radio transceiver 110-140 and communicates with mobile system radio transceiver 110-140 through preset interface 50.Processor 150 can control the operation of mobile system radio transceiver 110-140.According to one embodiment of present invention, also placement processor 150 Procedure Codes of application of installation process can be used for for communicator 100 with execution.When implementation code, processor unit or storehouse example can be regarded as by along with the Procedure Codes of particular data in data structure.Therefore, can processor 150 be regarded as task of comprising multiple processor unit or respective software module, one or more specific function of each execution wherein in processor unit.
Memory 160 can the system data of storing communication device 100 and user data.Because each RAT uses different system clocks and different time unit usually, all clocks 170 can aim at (timingalignment) for use as reference clock with the sequential performed between two mobile system radio transceivers.
Note that to illustrate concept of the present invention, what Fig. 1 represented is simplify module diagram, wherein only shows element related to the present invention.But the present invention is not limited to shown in Fig. 1.
Fig. 2's is the simplification module diagram of communicator according to another embodiment of the invention, and wherein, this communicator has central control entity.Communicator 200 can comprise at least two mobile system radio transceivers, and wherein, these at least two mobile system radio transceivers are used for the TX/RX radio activity simultaneously performed in two mobile networks.As shown in Figure 2, communicator 200 can comprise LTE/LTE-A transceiver 210 and 120, WCDMA/TD-SCDMA transceiver 230 and 130 and GSM/CDMA transceiver 240.Note that the RAT of the mobile system radio transceiver shown in Fig. 2 is only the one in multiple embodiment, the present invention is not limited to this.
Identical with shown in Fig. 1 of most of element shown in Fig. 2.Therefore, for similar elements, with reference to the above-mentioned paragraph of figure 1, and description can be omitted at this for simplicity.Different from Fig. 1, the communicator 200 shown in Fig. 2 can more comprise central control entity 255.Central control entity 255 is logic entity, is physically implemented in processor 250.Note that in some other embodiment of the present invention, central control entity 255 can be integrated in the controlled entity of a mobile system radio transceiver.Therefore, the present invention is not limited to the structure shown in Fig. 2.More it should be noted that to illustrate concept of the present invention, what Fig. 2 represented is simplify module diagram, wherein only shows element related to the present invention.But the present invention is not limited to shown in Fig. 2.
According to one embodiment of present invention, communicator 100 and 200 can be notebook computer, mobile phone, can take game device, can take multimedia player, global positioning system (GlobalPositioningSystem, GPS), transceiver, personal digital assistant, panel computer or other similar devices.
In an embodiment of the present invention, the controlled entity that central control entity 255 or each mobile system radio transceiver comprise (such as, controlled entity 113, 123, 133 or 143) radio activity information can be collected from (co-located) mobile system radio transceiver that coexists, according to collected radio activity information, (will be described further in subsequent paragraph) determines whether disturb will occur or occur when at least two mobile system radio transceivers perform TX/RX radio activity in two mobile networks simultaneously, and determine that control information is to alleviate interference.
Fig. 3 is the frequency diagram of example interference according to an embodiment of the invention.As shown in Figure 3, GSM-1800 (that is, digital mobile system (digitalcellularsystem, DCS)) uses 1,710 – 1,785MHz to be used for uplink, and uses 1,805 – 1,880MHz to be used for downlink reception.TD-SCDMA and TD-LTE frequency band 39 uses not only for uplink but also for 1,880 – 1,920MHz of downlink reception.Owing to there is no guard band between TD-SCDMA/TD-LTE frequency band 39 and DCSRX frequency band; when GSM/CDMA transceiver 140/240 is 1; 805 – 1; perform RX radio activity in 880MHz frequency band and simultaneously LTE/LTE-A transceiver 110/120/210/220 or WCDMA/TD-SCDMA transceiver 130/230 perform TX radio activity in frequency band 39 time, will disturb.More specifically, GSM/CDMA can receive the TXRF signal of LTE/LTE-A transceiver 110/120/210/220 or WCDMA/TD-SCDMA transceiver 130/230, thus can cause unnecessary interference to the RXRF signal of GSM/CDMA transceiver 140/240.
But, when communicator (such as communicator 100/200) is equipped with at least two mobile system radio transceivers, by (simultaneouscommunication) ability normally primary demand that communicates while two mobile system radio transceivers in two mobile networks.Therefore, the present invention proposes the several method alleviating the interference produced when performing communication simultaneously.Please note in an embodiment of the present invention, communication simultaneously can comprise the voice service of double talk (such as, circuit switching (circuit-switched, or IP Multimedia System (IPmultimediasubsystem CS), IMS)) and data, services (such as, packet switching), the voice service of double talk and voice service, and the data, services of double talk and data, services.The present invention should not be limited to any one situation.
According to one embodiment of present invention, controlled entity (the controlled entity 113 that such as central control entity 255 or each mobile system radio transceiver comprise, 123, 133 or 143) radio activity information can be collected from mobile system radio transceiver, determine whether that interference will occur or occur according to radio activity information, and when disturb occur time which mobile system radio transceiver be interference transceiver and which mobile system radio transceiver is disturbed transceiver, and can determine that control information is to control interference transceiver or to be disturbed transceiver further according to radio activity information, to alleviate interference.
Please note in this embodiment, interference transceiver is the mobile system radio transceiver with transmission radio activity, and wherein, this transmission radio activity is by interference or disturbing the reception radio activity being disturbed transceiver.Such as, in situation in figure 3, when GSM/CDMA transceiver 140/240 performs 1,805-1, RX radio activity in 880MHz frequency band and simultaneously LTE/LTE-A transceiver 110/120/210/220 or WCDMA/TD-SCDMA transceiver 130/230 perform the TX radio activity in frequency band 39 time, can LTE/LTE-A transceiver 110/120/210/220 or WCDMA/TD-SCDMA transceiver 130/230 be regarded as interference transceiver, and GSM/CDMA transceiver 140/240 can be regarded as and be disturbed transceiver.
Fig. 4 is the method flow diagram alleviating the interference occurred in communicator according to an embodiment of the invention, wherein, this communicator comprises at least two mobile system radio transceivers, and Radio Shacks TX/RX that this mobile system radio transceiver can perform in two mobile networks are simultaneously.First, the mobile system radio transceiver that communicator comprises periodically or aperiodically can transmit corresponding radio activity information to controlled entity (step S402).Then, controlled entity can receive corresponding radio activity information (step S404) from the mobile system radio transceiver of correspondence.As mentioned above, the controlled entity of reception radio activity information both can be controlled entity 255 also can be the controlled entity 113,123,133 or 143 that each mobile system transceiver comprises.
Note that in certain embodiments, step S402 and S404 can be merged into a step, be i.e. the periodically or aperiodically radio activity information of mobile system radio transceiver that comprises of collection communication device, the present invention is not limited to this.
Next, according to the radio activity information of collecting, controlled entity can obtain overall clock information with the timing synchronization (step S406) between the radio activity performing two mobile system radio transceivers.Note that step S406 is optional step, and perform step S406 when sequence is synchronous when needed.Then, according to the radio activity information of collecting, controlled entity can determine whether that (or occurring) (step S408) will occur in interference.When controlled entity determines that interference can not occur (or not sending), program is back to step S402.When controlled entity determines that (or there occurs) will occur in interference, according to radio activity information, controlled entity can determine which mobile system radio transceiver is for interference transceiver further, and which mobile system radio transceiver is for being disturbed transceiver, and for controlling the control information (step S410) disturbed transceiver or be disturbed transceiver, thus alleviate interference.
According to one embodiment of present invention, radio activity information comprises uplink/downlink frequency of operation, frequency band, the bandwidth of corresponding mobile system radio transceiver, by the current COS providing the communication service that maybe will provide of corresponding mobile system radio transceiver, the service state of corresponding mobile system radio transceiver, the received signal strength of corresponding mobile system radio transceiver or quality, the scheduling (schedule) of the transmission/reception radio activity of corresponding mobile system radio transceiver, or the combination of above-mentioned each.
Such as, controlled entity can determine whether to disturb generation or occurring according to the uplink/downlink frequency of operation of corresponding mobile system radio transceiver, frequency band, bandwidth.When there is not guard band; or the guard band between upstream operation frequency/frequency band and downstream operation frequency/frequency band is too small; or RF filter is when can not provide enough interference rejection (interferencerejection), controlled entity can determine that interference will occur.
Again such as, controlled entity can according to by the current priority providing the COS of the communication service that maybe will provide to determine corresponding mobile system radio transceiver of corresponding mobile system radio transceiver.Different COS has different priority.Such as, the comparable data, services of voice service has higher priority.In order to avoid or alleviate interference, the performance of the communication service with lower priority can be sacrificed.
Again such as, controlled entity can determine whether to disturb generation or occurring according to the service state of corresponding mobile system radio transceiver further.When a mobile system radio transceiver operates in inactive state or idle state, controlled entity can determine that interference can not occur, this is due to when operating in inactive state, system wireless electricity transceiver can't communicate with the equivalent communication device in corresponding mobile network, and when operating in idle state, mobile system radio transceiver does not have or only has minority TX radio activity.
Again such as, controlled entity can determine control interference transceiver according to the received signal strength of corresponding mobile system radio transceiver or quality or be disturbed the control information of transceiver.Better received signal strength or quality usually mean and are disturbed more interference that transceiver can stand self-interference transceiver, or interference transceiver can reduce through-put power and can not cause connecting and disconnect (disconnection).
Again such as, controlled entity can determine control interference transceiver according to the scheduling of the TX/RX radio activity of corresponding mobile system radio transceiver or be disturbed the control information of transceiver.When needing one or more chance skipping or abandon the TX radio activity performing interference transceiver, according to disturbing the TX scheduling of transceiver and being disturbed the RX scheduling of transceiver, controlled entity can determine that the preferred time is to skip or to abandon TX radio activity.Such as, when disturbing the TX radio activity of transceiver to collide with the RX radio activity being disturbed transceiver, controlled entity can indicate interference transceiver to skip or abandon the radio activity that can collide.
According to one embodiment of present invention, controlled entity can according to the radio activity information determination control information of above-mentioned collection to control to disturb transceiver to reduce for performing the through-put power that it transmits radio activity.According to another embodiment of the invention, controlled entity can according to the radio activity information determination control information of above-mentioned collection to control to disturb transceiver to skip or abandon one or more chance performing its TX radio activity.
According to another embodiment of the invention, controlled entity can have less or glitch-free another frequency to control interference transceiver execution gravity treatment (reselection) process automatically to reselect to according to the radio activity information determination control information of above-mentioned collection, and message transfer is to notify this capacity change (capabilitychange) that corresponding mobile network is relevant.Capacity changes such as, can not support interfering frequency.Note that reuse adoption process preferably performs in idle state.
According to another embodiment of the invention, controlled entity can according to the radio activity information determination control information of above-mentioned collection to control to disturb transceiver or be disturbed transceiver at call establishment stage message transfer to notify that the frequency occurred wherein or frequency band are not supported by corresponding mobile network interference.To occur after frequency wherein or frequency band be not supported being notified of interference, corresponding mobile network or can not be disturbed interference transceiver transceiver and transfer (handover) to interference by this frequency of occurring wherein or frequency band.
According to still a further embodiment, controlled entity can according to the radio activity information determination control information of above-mentioned collection to control interference transceiver or to be disturbed transceiver message transfer (such as interference indication message) to report interference problem to corresponding mobile network.About the specific descriptions of interference indication message, can with reference to specification 3GPP36.311V11.5.0, paragraph 56.9 and publication number are 2011/0312288A2, and title is the United States Patent (USP) of " Systemandmethodforcoordinatingmultipleradiotransceiversw ithinthesamedeviceplatform ".
According to one embodiment of present invention, controlled entity can perform reuse adoption process automatically to select to another frequency according to the radio activity information determination control information of above-mentioned collection to control interference transceiver or to be disturbed transceiver, and message transfer changes with the capacity that corresponding mobile network is relevant.Capacity changes such as, can not support interfering frequency.Note that reuse adoption process preferably performs in idle state.
According to another embodiment of the invention, controlled entity can according to the radio activity information determination control information of above-mentioned collection with control interference transceiver or be disturbed transceiver by measurement report value reporting to before corresponding mobile network, reduce the measurement report of interference by the frequency that occurs wherein or frequency band.By this kind of mode, corresponding mobile network by less possibly by interference transceiver or be disturbed transceiver and be handed over to interference and this frequency wherein or frequency band will occur.
According to another embodiment of the invention, controlled entity can according to the radio activity information determination control information of above-mentioned collection to control interference transceiver or to be disturbed transceiver message transfer (such as quality index of a channel (ChannelQualityIndicator, CQI)) to notify that corresponding mobile network uses more strong modulation and encoding mechanism.By this kind of mode, the reception RF signal being disturbed transceiver will be more effectively anti-interference.
Form 1 shows the illustrative case of the radio activity information of the collection according to one embodiment of the invention two mobile system radio transceivers.
In the situation of form 1; (please note at this owing to there is no enough guard bands between 4GUL frequency band and 2GDL frequency band; UL frequency band and DL frequency band represent with centre frequency); 4G transceiver (such as; LTE/LTE-A transceiver 110,120,210 or 220) be interference transceiver; and 2G transceiver (such as, GSM/CDMA transceiver 140 or 240) is for being disturbed transceiver.Because CS service has higher priority than PS service, controlled entity can be determined to make interference transceiver sacrifice its performance to alleviate interference.
Controlled entity determines how to alleviate interference (such as control information) according to DL signal strength/quality.Due in the situation shown in form 1,2G and 4G has good DL signal strength/quality, and controlled entity can determine the through-put power reducing interference transceiver.According to one embodiment of present invention, controlled entity can determine according to the UL/DL frequency of TDD configuration, DL signal strength/quality and/or UL/DL radio the through-put power disturbing transceiver.Such as, when the UL/DL radio of 4G transceiver is less, it means that the interference caused by 4G transceiver is less.
In an embodiment of the present invention, controlled entity can indicate interference transceiver to reduce its through-put power always, or instruction interference transceiver only just reduces its through-put power when its TX radio activity is collided with the RX radio activity being disturbed transceiver.As mentioned above, controlled entity can obtain overall clock information to perform the timing synchronization between interference transceiver and the radio activity being disturbed transceiver, and can determine when that instruction interference transceiver reduces its through-put power.There is several method in prior art and perform timing synchronization between different RAT, for purpose of brevity, omit at this and discuss.
Form 2 shows another illustrative case of the radio activity information of the collection of two mobile system radio transceivers according to a further embodiment of the invention.
Be not used in the situation shown in form 1, in the situation of form 2,2G and 4G has poor DL signal strength/quality.When 2G and 4G has poor DL signal strength/quality, the through-put power reducing interference transceiver can cause the connection disturbing transceiver to disconnect.Therefore, be different from the through-put power reducing interference transceiver, controlled entity can indicate interference transceiver to skip or abandon one or more chance performing its TX radio activity.As mentioned above, controlled entity can obtain overall clock information to perform the timing synchronization between interference transceiver and the radio activity being disturbed transceiver, and can determine when to indicate interference transceiver to skip or abandon one or more chance performing its TX radio activity.Controlled entity can indicate interference transceiver to merely skip or abandon the TX radio activity performing and collide with the RX radio activity being disturbed transceiver.
Form 3 shows another illustrative case of the radio activity information of the collection of two mobile system radio transceivers according to a further embodiment of the invention.
Be not used in the situation shown in form 2, in the situation of form 3, interference transceiver operations is in idle state.Due to when disturbing transceiver operations in idle state, interference transceiver does not have or only has a small amount of TX radio activity, so there is no necessary enable any protection mechanism.
Form 4 shows another illustrative case of the radio activity information of the collection of two mobile system radio transceivers according to a further embodiment of the invention.
Be not used in the situation shown in form 2, in the situation of form 4, be disturbed transceiver operations in idle state.When 2G and 4G has poor DL signal strength/quality, the through-put power reducing interference transceiver can cause the connection disturbing transceiver to disconnect.Therefore, be different from the through-put power reducing interference transceiver, controlled entity can indicate interference transceiver to skip or abandon one or more chance performing its TX radio activity.On the other hand, owing to being disturbed transceiver operations in idle state, be different from instruction interference transceiver and skip or abandon one or more chance performing its TX radio activity, controlled entity also can indicate and be disturbed transceiver execution reuse adoption process automatically to reselect to another frequency, such as GSM900 (if support), and message transfer is to notify the volume change that corresponding mobile network is relevant.By this mode, interference transceiver can not suffer performance degradation or connect situation about disconnecting.
Fig. 5 determines whether according to one embodiment of the invention the method flow diagram that interference can occur.First, controlled entity obtains uplink and downlink frequency of operation or the frequency band (step S502) of mobile system radio transceiver.In the present embodiment, step S502 can periodically or aperiodically perform.Then, controlled entity can determine whether that interference can occur (step S504) because the upstream operation frequency of a mobile system radio transceiver or the downstream operation frequency of frequency band and another mobile system radio transceiver or frequency band are too near.At this, " too near " means does not have enough guard bands for the RF filter that is disturbed transceiver and comprises to refuse the interference of self-interference transceiver fully.When according to the uplink and downlink frequency of operation of the mobile system radio transceiver obtained or frequency band, controlled entity determines that interference may can not occur, flow process is back to step S502 with the uplink and downlink frequency of operation or the frequency band that make controlled entity periodically or aperiodically collect mobile system radio transceiver.
When controlled entity determines that interference may occur, controlled entity can determine which mobile system radio transceiver disturbs transceiver and which mobile system radio transceiver to be disturbed transceiver further, and checks the service state (step S506) of this interference transceiver.Then, controlled entity can determine whether that interference transceiver operations is in connection status or single user state (step S508) further.If so, controlled entity can determine that interference will occur, and can determine interference further and be disturbed the current priority (step S510) providing the communication service that maybe will provide of transceiver.If not, flow process can be back to step S502 with the uplink and downlink frequency of operation or the frequency band that make controlled entity periodically or aperiodically collect mobile system radio transceiver, this is that interference can not occur due to when disturbing transceiver operations in idle state.
Fig. 6 is the method flow diagram determining whether that interference can occur according to a further embodiment of the invention.First, controlled entity obtains the downstream operation frequency of mobile system radio transceiver or the potential upstream operation frequency of frequency band and mobile system radio transceiver or frequency band (step S602).Note that and be different from step S502, in step S602, " potential " upstream operation frequency or frequency band are subjected to an examination.Because a mobile system radio transceiver can support multiple frequency or the frequency band of a kind of RAT, even if current operation is not in interfering frequency or frequency band for mobile system radio transceiver, mobile system radio transceiver still may be handed over to perturbation operation frequency or frequency band in the future.
Then, controlled entity can determine whether that interference can occur (step S604) because the potential upstream operation frequency of a mobile system radio transceiver or the downstream operation frequency of frequency band and another mobile system radio transceiver or frequency band are too near.When controlled entity determines that interference may can not occur, flow process is back to step S602.
When controlled entity determines that interference may occur, controlled entity can control potential interference transceiver at call establishment stage message transfer to notify that the frequency occurred wherein or frequency band are not supported (step S606) by corresponding mobile network interference.To occur after frequency wherein or frequency band be not supported being notified of interference, corresponding mobile network or can not be disturbed interference transceiver transceiver and is handed over to and does this frequency or frequency band.
Fig. 7 is for determining the method flow diagram of the priority disturbing and be disturbed the communication service that transceiver provides according to an embodiment of the invention.First, controlled entity can obtain interference and be disturbed the COS (step S702) of transceiver.Then, controlled entity can determine whether to be disturbed the COS of transceiver is CS (step S704).If not, controlled entity can determine whether that the COS disturbing transceiver is CS (step S706).If so, controlled entity can determine whether that the COS disturbing transceiver is PS (step S708).When the COS disturbed and be disturbed transceiver be all PS or be all CS time, the priority disturbing and be disturbed the communication service that transceiver provides is equal.Therefore, controlled entity can be determined to make interference in turn and be disturbed transceiver to suffer service quality to decay (step S710 and step S714).More specifically, disturb and be disturbed transceiver some above-mentioned behaviors or protection mechanism can be taked to sacrifice its performance to alleviate interference in turn.
When be COS that PS is disturbed transceiver when disturbing the COS of transceiver being CS, because PS is lower than the priority of CS, controlled entity can be determined to make interference transceiver sacrifice its performance to alleviate interference (step S716).When be COS that CS is disturbed transceiver when disturbing the COS of transceiver being PS, because CS is higher than the priority of PS, controlled entity can be determined to make interference transceiver sacrifice its performance to alleviate interference, or determines not make interference transceiver sacrifice its performance (step S712).
Finally, controlled entity can determine how to process to alleviate interference.That is, controlled entity can determine the control information (step S718) disturbing and/or be disturbed transceiver.
Fig. 8 is the method flow diagram determining the control information disturbing transceiver according to an embodiment of the invention.First, controlled entity can determine the maximum transmission power (step S802) disturbing transceiver.According to one embodiment of present invention, controlled entity can according to the maximum transmission power being disturbed the frequency of operation of transceiver or frequency band, the received signal strength disturbing and be disturbed transceiver or quality, the TDD configuration of the data receiver pattern (pattern) disturbing and be disturbed transceiver and interference transceiver determines to disturb transceiver.Then, controlled entity can determine whether that the maximum transmission power determined in step S802 is too small to cause interference transceiver to be disconnected connection (step S804) from mobile network.When the maximum transmission power determined in step S802 is too small, controlled entity can determine that one or more TX radio activity (step S806) of colliding with the RX radio activity being disturbed transceiver is skipped or abandoned to control information to control interference transceiver.When the maximum transmission power determined in step S802 is not too small, controlled entity can determine that control information reduces through-put power (step S808) to control interference transceiver.By this mode, interference still can be allowed and transmission and reception while being disturbed transceiver.Note that in some embodiments of the invention, controlled entity can control to disturb transceiver only just to reduce through-put power when its TX radio activity is collided with the RX radio activity being disturbed transceiver.
Fig. 9 is the method flow diagram determining the control information disturbing or be disturbed transceiver according to an embodiment of the invention.First, controlled entity can determine whether interference transceiver/be disturbed transceiver operations in idle state or connection status (step S902).When disturbing transceiver/be disturbed transceiver operations in idle state, controlled entity can control interference transceiver/be disturbed transceiver to perform reuse adoption process automatically to reselect to another frequency (step S904).When gravity treatment success (the "Yes" path of step S906), controlled entity can control to disturb transceiver/be disturbed transceiver message transfer to notify that the relevant capacity of corresponding mobile network changes (step S908).Such as, (disable) may cause forming interference or disturbed some frequency supported or frequency bands to other mobile system radio transceivers to disturb transceiver/be disturbed transceiver to forbid.
When interference transceiver/be disturbed transceiver operations in connection status, or when gravity treatment is unsuccessful, controlled entity can determine whether to disturb the corresponding mobile network of transceiver/be disturbed transceiver to support interference feedback (interferencefeedback) (step S910) further.In one embodiment of the invention, interference feedback can for above-mentioned " coexist in device instruction (In-devicecoexistenceindication) ".When corresponding mobile network supports interference feedback, interference transceiver/be disturbed transceiver can message transfer with by the report of the DL/UL pattern of interference problem and/or suggestion to corresponding mobile network (step S912).When corresponding mobile network does not support interference feedback, interference transceiver/be disturbed transceiver can reduce interference and (maybe will occur) frequency wherein or the measurement report values (step S914) of frequency band occur, and orders interference transceiver/be disturbed transceiver to leave this frequency or frequency band to make corresponding mobile network.
According to one embodiment of present invention, controlled entity can pass through software control or hardware controls and controls interference transceiver and/or be disturbed transceiver to perform above-mentioned behavior or protection mechanism to alleviate interference.To skip or to abandon the behavior of one or more chance performing TX radio activity, controlled entity can pass through software control to control interference transceiver, and the software module of interference transceiver can not the TX radio activity that will collide with the RX radio activity being disturbed transceiver of scheduling like this.On the other hand, controlled entity also can pass through hardware controls to control interference transceiver, and the time disturbing transceiver can occur in collision so directly closes one or more hardware unit, to skip or to abandon the chance performing TX radio activity.Controlled entity (can be the controlled entity 113,123,133 or 143 that central control entity 255 or each mobile system radio transceiver comprise) can pass through the hardware interface that period connects and controls interference transceiver.Therefore, in embodiments of the invention, can exchange between the controlled entity of mobile system radio transceiver as shown in fig. 1 or transmission, or can exchange between the controlled entity and controlled entity 255 of mobile system radio transceiver as shown in Figure 2 or transmit radio activity information and control information.Note that the present invention is not limited to this.
The above embodiment of the present invention can in many ways in any one realize.Such as, hardware, software or the combination of the two can be used to realize above-described embodiment.Should understand and can regard any element or element set that perform above-mentioned functions as one or more processor, this one or more processor controls above-mentioned functions.And this one or more processor may be implemented in a variety of ways, such as specialized hardware, or the common hardware to perform above-mentioned functions using microcode or software programming.
Though the present invention discloses as above with preferred embodiment; so should understand it and be not used to limit scope of the present invention; any one of ordinary skill in the art; without departing from the spirit and scope of the present invention; when doing a little change and retouching, therefore protection scope of the present invention is when being as the criterion depending on the accompanying claim person of defining.
Claims (25)
1. a communicator, comprising:
At least two mobile system radio transceivers, for performing the multiple transmission/reception radio activity at least two mobile networks simultaneously; And
Controlled entity, be coupled to the plurality of mobile system radio transceiver, this controlled entity for collect the plurality of mobile system radio transceiver radio activity information, determine whether that interference is by generations or occurring according to this radio activity information, and when this interference occurs which mobile system radio transceiver be disturb transceiver and which mobile system radio transceiver for being disturbed transceiver; And more according to this radio activity information determination control information, for this interference transceiver of control, maybe this is disturbed transceiver to alleviate this interference;
Wherein, this interference transceiver is this mobile system radio transceiver with this transmission radio activity, and wherein, this transmission radio activity is by interference or disturb this reception radio activity that this is disturbed transceiver.
2. communicator as claimed in claim 1, it is characterized in that, this controlled entity is integrated among one of them of the plurality of mobile system radio transceiver.
3. communicator as claimed in claim 1, it is characterized in that, this radio activity information comprises the uplink/downlink frequency of operation of this corresponding mobile system radio transceiver, frequency band and bandwidth, by the current COS providing the communication service that maybe will provide of this corresponding mobile system radio transceiver, the service state of this corresponding mobile system radio transceiver, the received signal strength of this corresponding mobile system radio transceiver or quality, the scheduling of the plurality of transmission/reception radio activity of this corresponding mobile system radio transceiver, the combination of packet error probability or above-mentioned each.
4. communicator as claimed in claim 1, is characterized in that, according to this control information, this interference transceiver reduces the through-put power of the transmission radio activity for performing this interference transceiver.
5. communicator as claimed in claim 1, is characterized in that, according to this control information, one or more chance of the transmission radio activity performing this interference transceiver is skipped or abandoned to this interference transceiver.
6. communicator as claimed in claim 1, is characterized in that, according to this control information, this interference transceiver performs reuse adoption process automatically to reselect to another frequency, and message transfer is to notify the capacity change that this corresponding mobile network is relevant.
7. communicator as claimed in claim 1, is characterized in that, according to this control information, this interference transceiver at call establishment stage message transfer to notify that the frequency occurred wherein or frequency band are not supported by this this interference of corresponding mobile network.
8. communicator as claimed in claim 1, is characterized in that, according to this control information, this interference transceiver message transfer is to report this interference problem to this corresponding mobile network.
9. communicator as claimed in claim 1, is characterized in that, according to this control information, this is disturbed transceiver and performs reuse adoption process automatically to reselect to another frequency, and message transfer is to notify the capacity change that this corresponding mobile network is relevant.
10. communicator as claimed in claim 1, is characterized in that, according to this control information, this is disturbed transceiver at call establishment stage message transfer to notify that the frequency occurred wherein or frequency band are not supported by this this interference of corresponding mobile network.
11. communicators as claimed in claim 1, is characterized in that, according to this control information, this interference transceiver before by measurement report value reporting to this corresponding mobile network, reduces the measurement report of this interference by the frequency that occurs wherein or frequency band.
12. communicators as claimed in claim 1, is characterized in that, according to this control information, this is disturbed transceiver message transfer to notify that this corresponding mobile network uses more strong modulation and encoding mechanism.
13. communicators as claimed in claim 1, is characterized in that, according to this control information, this is disturbed transceiver message transfer to report this interference problem to this corresponding mobile network.
14. communicators as claimed in claim 1, is characterized in that, according to this control information, this is disturbed transceiver before by measurement report value reporting to this corresponding mobile network, reduce the measurement report of this interference by the frequency that occurs wherein or frequency band.
15. 1 kinds of methods alleviating the interference occurred in communicator, this communicator comprises at least two mobile system radio transceivers, these at least two mobile system radio transceivers are used for the multiple transmission/reception radio activity simultaneously performed in two mobile networks, and the method comprises:
Collect the radio activity information of the plurality of mobile system radio transceiver;
Determine whether that interference is by generations or occurring according to this radio activity information, and when this interference occurs which mobile system radio transceiver be disturb transceiver and which mobile system radio transceiver for being disturbed transceiver; And
According to this radio activity information determination control information, for this interference transceiver of control, maybe this is disturbed transceiver to alleviate this interference,
Wherein, this interference transceiver is this mobile system radio transceiver with this transmission radio activity, and wherein, this transmission radio activity is by interference or disturb this reception radio activity that this is disturbed transceiver.
16. methods as claimed in claim 15, it is characterized in that, this radio activity information comprises the uplink/downlink frequency of operation of this corresponding mobile system radio transceiver, frequency band and bandwidth, by the current COS providing the communication service that maybe will provide of this corresponding mobile system radio transceiver, the service state of this corresponding mobile system radio transceiver, the received signal strength of this corresponding mobile system radio transceiver or quality, the scheduling of the plurality of transmission/reception radio activity of this corresponding mobile system radio transceiver, the combination of packet error probability or above-mentioned each.
17. methods as claimed in claim 15, it is characterized in that, the method more comprises:
The through-put power of the transmission radio activity for performing this interference transceiver is reduced by this interference transceiver.
18. methods as claimed in claim 15, it is characterized in that, the method more comprises:
Skipped or abandoned one or more chance performing transmission radio activity by this interference transceiver.
19. methods as claimed in claim 15, it is characterized in that, the method more comprises:
Perform reuse adoption process automatically to reselect to another frequency by this interference transceiver, and message transfer is to notify the capacity change that this corresponding mobile network is relevant.
20. methods as claimed in claim 15, it is characterized in that, the method more comprises:
By this interference transceiver at call establishment stage message transfer to notify that this this interference of corresponding mobile network frequency wherein will occur or frequency band is not supported.
21. methods as claimed in claim 15, it is characterized in that, the method more comprises:
By this interference transceiver message transfer so that this interference problem is reported to this corresponding mobile network.
22. methods as claimed in claim 15, it is characterized in that, the method more comprises:
Be disturbed transceiver execution reuse adoption process automatically to reselect to another frequency by this, and message transfer is to notify the capacity change that this corresponding mobile network is relevant.
23. methods as claimed in claim 15, it is characterized in that, the method more comprises:
Transceiver is disturbed at call establishment stage message transfer to notify that the frequency occurred wherein or frequency band are not supported by this this interference of corresponding mobile network by this.
24. methods as claimed in claim 15, it is characterized in that, the method more comprises:
By this interference transceiver, maybe this is disturbed transceiver before by measurement report value reporting to this corresponding mobile network, reduces the measurement report of this interference by the frequency that occurs wherein or frequency band.
25. methods as claimed in claim 15, it is characterized in that, the method more comprises:
Transceiver message transfer is disturbed to notify that this corresponding mobile network uses more strong modulation and encoding mechanism by this.
Applications Claiming Priority (5)
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| US201361814961P | 2013-04-23 | 2013-04-23 | |
| US61/814,961 | 2013-04-23 | ||
| US14/258,225 | 2014-04-22 | ||
| US14/258,225 US9503917B2 (en) | 2013-04-23 | 2014-04-22 | Methods for mitigating interference in a communications apparatus and communications apparatus utilizing the same |
| PCT/CN2014/076045 WO2014173300A1 (en) | 2013-04-23 | 2014-04-23 | Methods for mitigating interference in a communications apparatus and communications apparatus utilizing the same |
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| CN105144772A true CN105144772A (en) | 2015-12-09 |
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| US9503950B2 (en) * | 2015-01-14 | 2016-11-22 | Qualcomm Incorporated | Managing reselection in a multi-SIM device by blocking reselection to a frequency of a subscription that is prone to interference from transmissions of another subscription |
| US9877308B2 (en) * | 2015-08-11 | 2018-01-23 | Qualcomm Incorporated | Interference mitigation techniques for broadcast multimedia receiver device |
| CN110769440B (en) * | 2018-07-27 | 2021-06-25 | 维沃移动通信有限公司 | Interference reporting control method, user equipment and network side equipment |
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Also Published As
| Publication number | Publication date |
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| WO2014173300A1 (en) | 2014-10-30 |
| US20140314008A1 (en) | 2014-10-23 |
| US9503917B2 (en) | 2016-11-22 |
| US9681316B2 (en) | 2017-06-13 |
| US20170041814A1 (en) | 2017-02-09 |
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